Question

What is the main function of the Cowper's gland?

Answer 1

Hint: Cowper's glands are pea-sized glands found in the male reproductive system below the prostate gland. Before ejaculation, they produce thick, clear mucus that drains into the spongy urethra.

Complete answer:
The bulbourethral gland, also known as Cowper's gland after English anatomist William Cowper, is one of two small exocrine glands found in many male mammals' reproductive systems (of all domesticated animals, they are absent only in dogs). In females, they are similar to Bartholin's glands.
Cowper's fluid (colloquially, pre-cum) is a pre-ejaculate fluid produced by the bulbourethral glands and secreted during sexual arousal to neutralize the acidity of the urethra in preparation for the passage of sperm cells.
Bulbourethral glands are found at the base of the penis, between the two layers of the urogenital diaphragm's fascia, in the deep perineal pouch, posterior and lateral to the membranous portion of the urethra. Transverse fibers of the sphincter urethrae membranaceus muscle surround them.
During sexual arousal, the bulbourethral gland produces up to 4 mL of fluid. The secretion is a clear, mucoprotein-rich fluid that helps to lubricate the distal urethra and neutralize acidic urine that has remained in the urethra.
According to one preliminary study, the bulbourethral gland fluid contains no sperm, whereas another study found that some men did leak sperm in potentially significant quantities (ranging from low counts to 50 million sperm per ml) into the pre-ejaculatory fluid, potentially leading to conception.
Thus, The bulbourethral gland is also known as Cowper's Gland. It is the male reproductive system's tiniest exocrine gland. Cowper's glands produce a fluid called Cowper's fluid, which aids in the neutralization of acidic urine and lubrication of the distal urethra.

Note:
The gland lubricates the passage of sperms in the urethra and also neutralizes the acidity in the urethra caused by previous micturition, making the medium alkaline to keep the sperms alive; its removal may have an impact on sperms.